Long awaited by the scholarly community, Wittgenstein’s so-called Big Typescript (von Wright Catalog number TS 213) is presented here in an en face English-German scholar’s edition. This book presents scholar’s edition of important material from 1933, Wittgenstein’s first efforts to set out his new thoughts after the publication of the Tractatus Logico Philosophicus . It includes indications to help the reader identify Wittgenstein’s numerous corrections, additions, deletions, alternative words and phrasings, suggestions for moves within the text, and marginal comments.